Speed-indicator.



R. SHIPMAN. SPEED INDICATOR.

I APPL IOATION FILED PEB.12,1908. 903,793. v

anvenl'oz Patented Nov. 10,1908.

4 SHEETS-SHEET 1.

R. SHIPMAN. SPEED INDICATOR. APPLICATION FILED EEB.12,1908.

Patented NOVVlO, 1908.

W1 ln ease:

4 SHEETSSHBET 2.

R. SHIPMAN. SPEED INDICATOR. APPLICATION FILED FEB. 12, 1908.

Patented. Nov. 10, 1908.

4 SHEETSSHEET 3.

@FFlIClZ.

RALPH SHIPMAN, OF SUNBURY, PENNSYLVANIA.

SFEED-INDIOATOR.

Application filed February 12, 1308. Serial No. =l5,509..-,

To all whom it may concern:

Be it known that I, RALPH SHIPMAN, a citizen of the United States,residing at Sunbury, in the county of Northumberland and State ofPennsylvania, have invented certain new and useful Improvements inSpeed-Indicators, of which the following is a specification.

My present invention relates to a speed indicator for vehicles operatingupon the same principle as the indicatorshown in my Patent No. 870,852in which the average speed at which the vehicle travels for a given unitof distance is indicated by an indicator arm which remains stationaryuntil the vehicle has traveled over the next unit of distance, when thearm shifts to indicate the average speed maintained during the latterunit,.if there has been a change in the average speed; or, if theaverage speed remains the same while the vehicle travels over successiveunits of distance, the indicator arm will remain stationary.

The device is arranged to indicate in miles per hour the average speedmaintained for short distances such as fifty, one hundred or two hundredfeet, so that in the ordinary steady travel of the vehicle the indicatorwill show in miles per hour the speed of the vehicle; but if any changeoccurs in the average speed for such short unit of distance, theindicator arm will move to indi cate the change in the speed.

In my present invention I provide means whereby the movement of thevehicle operates to wind the time mechanism, the latter being set inmotion when the vehicle starts and stopping each time the vehicle stops.and in connection with the speed indicating means I also providemechanism for indicating the total number of hours and min utes duringwhich the vehicle may have been used altogether, and how many hours itmay have been in operation in making a given' trip. For instance, if thevehicle runs say one hundred miles in a day, making a number of stopsduring that time, as the time mechanism of my invention runs only whenthe vehicle is in operation the number of hours during which the vehicleis in actual operation in traveling that distance will be indicated bythe mechanism which forms part of my present invention, and the totalnumber of hours that the vehicle may be used in making any number oftrips will also be indicated.

Specification of Letters Patent.

Patented Nov. 10, 1908.

retaliate is In the accompanying drawing which illus trates myinvention, Figure 1 is a top plan view of the indicator; Figs. 2' and 3are similar views of the speed indicating mechanism, the casing and themechanism for indicating the hours during which the ve-' hicle operates,being removed; Fig. i is a side view of the entire mechanism, the casingbeing removed; Fig. 5 is a plan view showing the mechanism forindicating the number of hours the vehicle is in operation; Fig. 6 is asection through the plate 2 of the frame on the line G6 of Fig. 2, someof the parts being omitted; Fig. .7 is a top plan view of the windingand resetting devices, the parts being shown in a different positionfrom the positions of the same parts in 2 and 3; Fig. 8 is a top planview of speed indicating mechanism embodying two cams, one for operatingthe mechanism when the vehicle is running at low or moderate speed, andthe other for operating at high speeds; Fig. 9 is a side elevation ofthe mechanism shown in. Fig. 8; and, Fig. 10 is detail view looking fromright to left in Fig. 9.

Referring to Figs. 1 to 7 inclusive of the drawing, A indicates asuitable casing within which the working parts of the indicator areinclosed, the latter being supported by three parallel plates 1, 2 and3.

The speed indicating mechanism comprises a spindle 4; which is connectedby a flexible shaft 5 to a star whcel'G which is operated intermittentlyby a tappct 7 suitably secured to the hub 8 of a vehicle wheel. Theshaft 4 carries a pinion 9 which meshes with a gear 10 upon a shaft 11suitably supported in the plates 2 and Upon the upper end of the shaft11 is secured a suail-cam 12 adapted to give an oscillating movement toa lever 13 having a pin 14 which engages the periphery of the cam. Thelever 13 is normally pressed toward the cam by a spring 15 whichencircles a post 16 upon which said lever is pivoted. During eachcomplete revolution of the gear 10 and cam 12 the lever 13 is moved fromthe position shown in Fig. 2, wherein the pin l-i engages the lowportion 12 of the cam, to the position shown in Fig. 3 wherein said pinengages the tongue 12" which forms the highest portion of the cam, andthe pin is then released from the tongue 12" and drops again OIl tO thelowest portion of the cam, thus causing the lever 13 to swing back andforth about its pivot 10 each tim the cam makes a complete revolution;Near the free-end of the lever the latter is connected to a clutchmember 17 by a link 18 which is secured to the clutch member by a pivotpin 19 and to the lever 13 by a slot and pin connection, the lever 18having a slot 19 through which a stud or pin 20 on the lever extends.This slot and pin connection allows the lever to move toward and fromthe clutch member. A spring 21, secured to the pin 20 and to the lever18 at a point near the clutch member serves as the main spring of theclock mechanism. The clutch member 17 is'mounted upon a shaft or spindle22 which carries a gear 23, the latter meshing with a pinion 24 upon astaff or spindle 25. This spindle 25 also carries a gear 27 which mesheswith a pinion 28 upon a spindle 29 the latter having thereon anescapement wheel 30 which is. controlled by the usual pallet 31 fork 32,balance wheel and hair spring 34 and a suitable regulator to control thespeed of the clock mechanism. The clutch member 17 is pivoted upon thespindle 22 so that it may turn independently of the various gears andpinions in one direction, and it carries one or more pawls 36, 37

adapted to engage with a-ratchet wheel 38 which is secured to saidshaft22. When said clutch member rotates in the direction of the arrow,Fig. 3, under the tension of the main spring 21, the pawls engage theratchet wheel 38 and thereby turn the shaft 22 and the gear 24 upon saidshaft, the speed of rotation of the clutch member being controlled bythe balance wheel and escapement mechanism. The shaft or spindle 25,-carryingthe pinion 24, rotates oncein a minute.

When the tongue 12" of the cam 12 passes the pin 14 on the lever 13,allowing the lever to move from the position shown in Fig. 3

to that shown in Fig. 2, the stud 20 on the lever strikes against theinner end 19 of the slot 19 and moves the link 18 from the positionshown in Fig. 3 to that shown in Fig. 2 thereby causing the clutchmember 17 to turn approximately 90 aboutthe shaft 22, the dogs or pawls36 and 37, during this movement, slipping over the teeth of the ratchetwheel 38. As the cam 12 continues to turn, in the direction of thearrow, the lever 13 swings outward, the stud 20 on the lever moving outtoward the end of the slot 1950f the link 18 (as shown in Fig. 7) andthe main spring 21 is thus placed under ten sion, and causes the clutchmember 17 to rotate in the direction of the arrow. During this movementthe pawls 36 and 37 are in engagement with the ratchet wheel 38 and theshaft 22 is thereby rotated, causing the gear 24 to operate the clockmechanism,

which regulates the speed of'the gear 24 and clutch member 17. It willbe understood that the clutch member is returned to its normal position,shown in Fig. 2, each time that the cam 12 makes one revolution and thelever 13 drops from the high part of the cam to the low part, and thatthe main spring 21 is put under tension to operate the clock mechanismas the cam forces the lever 13 outward from its normal position.

As the cam 12 is driven by the flexible shaft 5, the cam will turn oncefor each unit of distance traveled by the vehicle and its speed ofrotation will be proportional to the speed of the vehicle. Thus, the cam12 may be made to rotate once while the vehicle is traveling 176 feet,and if the vehicle is travcling at the rate of say five miles per hourthe cam will make one complete revolution in twenty-four seconds andthis will cause the clutch member 17 to be set back to its normalposition once in twenty-four seconds if the vehicle continues at therate of five miles per hour; butif the speed increases say to ten milesper hour the cam 12 will be driven twice as fast as before and theclutch member 17 will be reset in its normal position at the end of eachunit of distance traveled (176 ft.) but this resetting operation willtake place twice as often as before, if

the speed is maintained. at ten miles per hour, or once in twelveseconds, the main spring-being placed under tension to operate the clockmechanism during each revolution of the cam.

The cam is provided with an inclined face 12" so that when the vehicleis run backward the pin 14 may slide up on said inclined face andride-on top of the cam during each backward revolution thereof thuspreventing the pin from being caught and the parts damaged. A suitableholding pawl 40 is provided for the purpose of preventing the ratchetwheel 38 from being turned by the elutch member when the latter is beingreset. f

A float. lever 41 is pivotally connected to the clutch member 17 and toan arm or crank 42 which is pivoted upon a stud 43 on the plate 2, andthis float lever carries a pin 44 which projects upward into the slot 1)between the arms 45 and 46 of a wheel B having ratchet teeth 47extending partly around its circumference and gear teeth 48 extendingaround the remainder of its circumference said gear teeth meshing with apinion 49 upon a sleeve 50 which is loosely mounted upon a stud 26,suitably supported upon the plate 2 by a foot piece 26, and carries thepointer or indicator arm 51. A lever 52 mounted upon a central pivot 53carries a spring pressed pawl 54 which normally engages the teeth 47 ofthe wheel B, and one end 52 of this lever is arranged in the path ofmovement of a tripping pin 55 upon the cam 12, this pin being arranged.to engage a shoulder 52: upon the lever and .move the pawl 54 out ofengagement with the teeth of the wheel B and-permit said pawl to re- Thelever 52 has a the lever being adapted to'limitthe move- ;ment-of thelever. A spring 58 normally .tends to turnthe wheel B in the directionof thesarrowybut the wheelis normally prevented from turning in thatdirection by the pawl Slexccptat themoment when said pawl is moved outof engagement with the .teeth ofsaid wheel bythe-tripping pin 55.

The pin 44 upon the float lever 41 limits the movement of the wheel B inthe direction of the arrow.

When the lever 13 drops from the high part of the cam to the low part ofthe cam, the clutchmember 17 is returned'to its nor- -mal position,shown in Fig. 2, and the pin 44 upon the'fioat lever is consequentlyreturned to a. given pos1t1on each time said clutch member'is reset..Then as the cam 12 rotates and. the lever 13 moves outwardly the mainspr1ng2l belng put under tension causes the clutch member 17 and theclockwork to operate so that the clutch member moves .with

the clock mechanism-and the float lever is carried along by the clutchmember so as to move thepin 4:4 towardthe curved-face 45 of/the arm 45ofthe wheel B. When said pin engages the arm 45 the wheel B is turnedthereby in opposition:to-tl1e spring 58 and .the wheel'is rotatedcausing the pinion. 49 .also to' turn and the-indicator 51 is therebyturned. 'If the-vehicle is traveling at a low rate of speed. the pin-'44may engage the, arm 45 and rotate the wheel B into the position shown inFig. 3. Themjust before the pin on the leverlil drops ontov the low partof the cam 12the lever 52 will be rocked by the tripping pin 55 so asto-release the pawl 54 from the wheel '13, but the spring 58 will not beable ti guitu'rn the wheel'B- when the pawl is released from the wheel.because the pin 44 is still in engagement with the arm 45, and after thelever 13 drops on to the low part ofthe earn the wheel B will be heldagainst movement by the pawl 54:. The pointer or indicator 51 will thenindicate a low rate of speed on the dial, which is the average speed forthe distance traveled while the float lever was moving from its normalposition shown in Fig. .2, to the position shown 'in-Fig. 3. *W hen thelever 13 drops on to thelow part of the cam the clutch member 17 andfloat lever 44: are returned to their normal positions shown in Fig.2.If, during the next unit of distance traveled by 'the vehicle, theaverage speed of the vehicle ing pawl 54% from the wheel B before thepin on-the float lever reaches the position shown c1nzFlg. 3. As aconsequence the spring 58 -w1ll immediately turn the wheel B so that thearm 45 will fly back against the pin 44: on'the float lever which pinwill stop the movement of the wheel. In moving back ward'the pinionll)and the indicator arm 51 arelikewise moved and as soon as the arml5engages the pin at, the holding pawl 5a engages the teeth on the wheelB so as to hold the same. and. the lever 13 then drops from-thehigh tothe low part of the cam 12; causing the clutch member 17 and float levertocbeireset in-their normal-positions. The indicator will then indicatethe average speed maintained during the unit of distance just passedover. In the same way, it, in the next unit of distance the speed shouldbe still further increased the tripping pm will cause the lever 52 andpawl 5-1 to release the wheel B before the pin ll engages the arml5 andthe wheel will turn until the arm 45 strikes against the pin all. whenthe pawl .54 will loclritne wheel in this new position. if now theaverage speed is lower during another unitof distance, the cam 12 willturn slower and the float lever will move from its normal position untilthe pin ll engages the arm 45-.andmoves the wheel B so as to carry thepointer around to a position on the scale of the instrumentcorresponding to the average rate of movement of the vehicle during thisperiod.

The scale on the dial indicating the average speed in miles. per hour isindicated by the letter S on Fig. l and for the purpose of making thescaleunits approximately equal distances apart, the surface l5 of thearm B is preferably curved as shown, so that the movement of the wheel Bby the pin ll will be less as the pin is moves from its normal position.

It will be seen from the foregoing that the clock mechanism abovedescribed will be maintained in continual operation as long as thevehicle continues inmotion; but when the vehicle stops, the clockmechanism stops.

In order to indicate the number of hours that the vehicle may be inactual operation during a single trip, and the total number of hoursthat it may be in actual operation all together in any number of trips,I provide an hour hand or pointer 60, driven by the clock mechanism. andwhich travels over a scale 61 divided into units, from one to 10, the

indicator or pointer (50 being geared to the clock work of the mechanismso that when said mechanism (and the vehicle which drives it) operatesfor one hour, the pointer will travel the distance of one unit on thescale 61. and I provide train of adding wheels which indicate throughopenings 62. 63, 64 and 65 in the dial the total number of hours thatthe vehicle in actual operation. As shown in the drawing a pinion 06secured vthe rim 77 of the instrument, to which the distance ofgrcaterlength in order that the to the shaft 22 above the plate 1 drives a gear(37 upon a shaft 68 carrying a pinion 69. which meshes with a Wheel 70,which turns at the rate of one revolution per hour when the clock workis in operation. This minute wheel 70 has numerals thereon, as shown,which appear successively beneath the opening in the dial plate toindicate minutes or fractions of an hour. A pinion 71 rotatable with thegear meshes with a unit gear 72 whichv turns once for each tenrevolutions of the gear 70 and carries the pointer or indicator 60. Theunit gear 72 is provided with numerals reading from zero to nine, asshown, and these numerals appear in succession through the opening 64:in the dial plate. .A tappet 73 on the unit wheel 72 operates aregistering wheel 74- having numerals thereon for indicating tensthrough the opening 63 in the dial plate and the wheel 74 carries atappet 75 for operating a wheel 7 6 having numerals thereon forindicating hundreds through the opening 62 in the dial plate. It will beevident that the wheels 70, 72, 74 and 76 will indicate the total numberof hours and fractions of an hour that the clock work is in operation,and as the clock work only operates when the vehicle is in motion, theindicating wheels will then show the number of hours that the vehicle isused.

In indicating the number of hours that the machine is in operation on agiven trip,

scale 61 is attached may be turned so as to bring the zero mark oppositethe pointer 60 before commencing the trip. This does not disturb thedial plate 78 upon which the scale S is marked andthrough which thenumbers on the registering wheels may be observed.

The speed indicator heretofore described is suitable for a certainmoderate range of speeds and also for high speeds but tor vehicles whichmay run at very high speeds, such as sixty or sixty-five miles per hour,it is-dcsirable to average the speed for units of time operated clutchmemberimay not be reset so often as would occur with the mechanismheretofore described operating at high speed. For the higher speeds Iprovide two cams, driven from the vehicle by the flexible shaft, 'onefor operating the speed indicator at low or moderate speeds of thevehicle, and the other cam, rotated ata slower speed than the first,being arranged to operate the speed indicator when the vehicles speedincreases ahove a certain predetermined amount, the change from one camto the other being automatic.

In Figs. 8 and 9 of the drawing I have shown an indicator provided withtwo cams rotated by the flexible shaft and means whereby one camoperates the indicator at 1 moderate speeds and the other cam operatesthe indicator at high speeds. In said figures the mechanism foroperating at low speeds is substantially the same in Figs. 2, 3 and tof. the drawing and the parts are indicated by similar reference lettersand need not be described again in detail. The arm which is journaled onthe post 43 and pivotaliy connected to the float lever 41, in Figs. 8and 9 of the drawing, is movable vertically on the post 4-3 and slidesupon a segmental support fit) which is secured to the plate 2, thissegmental support having one end 80 lower than the other. The pivotalconnection 81 between the float lever and the clutch member 17 is suchas to permit the opposite end of the lever to move upward and downwardas the arm 42 slides over the support 80, and when the arm 42 is restingupon the low portion 80 of the support the pin 44 upon the float leverdrops below the plane of the wheel B out of the slot 7), which is formedbetween the spokes 45 and 4.6, lVhen operating at slow or moderatespeeds the clutch member 17 will be reset at the end of eachv revolutionof the cam 12, and the arm 42 will move on to the low portion of thesupport 80, the pin 44: dropping below the plane of the wheel. 13', andas the clutch member 17 is rotated by the time mechanism the arm 42 willride up off of the low portion of the support 80 on to the high portionand raise thepin on the float into the slot At these moderate speeds thespoke 45 of the wheel B will always be at some distance in advance ofthe pin 44 when the latter is raised into the slot as the arm 42 movesover the support 80. At moderate speeds the operation will bepractically the same as heretofore described.

For higher speeds I provide a cam 82 which is the same as the cam 12 butarranged to operate at one-half the speed by means of a gear 83 whichturns with the cam 12 and meshes with a gear 84 of double the sizearranged to turn the cam 82. This cam 82 will rotate once while thevehicle is traveling twice the distance required for rotating the caml2oncc. A spring n'cssed lever 13" has a pin 14 hearing against thepcriph-- cry of tl.e cam 82 and this lever is tripped once in eachrevolution of said cam in the same'way that the lever 12-3 is tripped bythe cam 12. A clutch member I? is connected to the lever l3 by a linlt1H and a main spring 21 is secured to the link and to a stud 20 upon thelever l3. The clutch mcn'iber 17 has pawls 20 which engage ratchet wheel38. the latter being secured to a gear 23 which meshes with the pinion24 upon the shaft 27 which latter is geared to the escapcment mechanism.lioa'i lever 4-1 pivoted at one cud to the clutch member 17' has itsopposite end pivoted to an :Ulh

42 journalcd upon a sup 'iortiug post 4 1- A tripping lever 85 ismounted upona pivot pin 86 so as to be rotatable thereon within limits,andalso adapted to oscillate in a vertical direction. This trippinglever carries one or more spring pawls 54 for engaging the wheel B inthe same manner and for the same purpose as the pawl 54 in thepreviously described figures. A pin 44 on the float lever 41 projectsinto an opening 6 in the wheel B between the spoke 45 and aspoke 86. Theslow, moving cam 82 has thereon two diametrically opposite tripping pins87 and 88 the former projecting a little higher above the plane of thecam than the latter.

The end portion 85 of the tripping lever is arranged so that it isnormally in the path of movement of the pins 87 and 88 so that as thesepins move past the end of the lever the latter will be tripped twice ineach revolution of the cam 82, which is the equivalent of tripping thelever once in each revolution of the cam 12. An arm 90 projects from thelever 85 into an annular recess 91 in the collar 92, to which the arm 42is secured so that when said arm 42 rests upon the low portion 80 of thesupport 80 the longer arm of the tripping lever 85 will be depressed,thus raising the end 85 of said lever above the path of movement of thelower pin 88 upon the cam 82, but said end will still be in the path ofmovement of the high pin 87. lVhen the arm 42 rests upon the highportion of the support 80 the longer arm of the lever 85 is raised sothat-the end 85 of said arm will be depressed and may be engaged by bothof the pins 87 and 88.

In operating at low or moderate speeds, as previously stated the arm 42will work out on to the high part of the support 80 carrying the pin 44into'the slot 6 and causing the end 85 of the tripping 'lever to bewithin range of both of the pins 87 and 88 so that said lever will betripped by each of said pins in succession and the pin 44 upon the floatlever 41 will regulate the position of the wheel B and the ii-id catorarm 51. This regulation will take place at each half revolution of thecam 82 or each complete revolution of the cam 12. But at high speeds thearm 42 will move only on the low portion 80 of the support 80, and thiswill permit the tripping lever 85 to tilt so that the end 85" of saidlever will be engaged only by the pin 87. Hence in operating at highspeeds the lever will be tripped only once during each revolution of thecam 82 and Whenever it is tripped, as the pin 44 is below the plane ofthe wheel B and the pin 45 on the float lever 41 is within the slot 6the latter pin will serve as a stop for the arm 86 of the wheel B andthus stop the wheel at a point which will cause the pointer to indicatea point on the scale corresponding to the average speed which thevehicle has made in traveling over two units of distance. If the averagespeed during the next two units increases, the pm 44 Wlll not havetraveled so far to the left as in Fig. 8 before the tripping actionoccurs, and when the lever is tripped the wheel will turn still furtherto the right in Fig. 8, until the arm 86 contacts with the pin 44 andthe higher speed will be indicated. On the other hand if the speeddecreases somewhat. during the next to units, but does not fall to a lowor moderate speed the pin 44 will have time to travel further to theleft in Fig. 8 and carry the arm 86 around with it, thus rotating thewheel B in a direction to cause the pointer 51 to indicate a lowerspeed. As previously described, during these high speed movements thearm 42 plays back and forth on the low portion 8O of the support anddoes not rise on to the high portion of said support. If new the speedfalls to a low,

or moderate speed the arm 42, operated by the clutch member 17 will rideon to the high portion of said support, thereby causing the trippinglever to tilt back into its normal position so that the end 85 will beengaged by both oi the pins 87 and 88, successively, and the pin uponthe float lever 41 will control the movement of the wheel B instead ofthe pin upon the float lever 41.

What I'claim is,

1. In a speed indicating device, a time mechanism, a clutch memberadapted to engage and move said mechanism, a main spring for moving saidmember in one direction, means operated by the machine whose speed is tobe measured for putting said spring under tension, means for releasingsaid spring and resetting said clutch member each time said machinemoves a given distance, an indicator, and means movable with said clutchmember for regulating the position of said indicator.

2. In a speed indicating device, a time mechanism, a clutch memberadapted to engage and move said mechanism, a main spring for moving saidmember in one direction, means operated by the machine whose speed is tobe measured for releasing said spring and resetting said clutch membereach time said machine moves a given distance, an indicator, a springfor moving said indicator in one direction, means for locking theindicator against such move ment, means movable with the clutch memberfor moving the indicator in the opposite direction and means forreleasing the indicator in advance of the resetting operation.

In a speed indicating device, a time mechanism, a clutch member adaptedto en gage and move said mechanism, a main spring for moving said memberin one direction, means operated by the machine whose speed is to bemeasured for releasing said spring and rcsetti ng said clutch membereach time said machine moves a given distance, a rotatable ratchetdevice, spring pressed in one direction, a pawlfor locking said ratchetdevice, means movable with said clutch member for moving said ratchetdevice in the opposite direction, meansfor tripping said pawl to releasethe ratchet device in advance of the resetting operation and anindicator movable by said ratchet device.

4. In a speed indicating device, a time mechanism, a clutch memberadapted to engage and move said mechanism, a cam rotatableby the machinewhose speed is to be measured, a lever movable by said cam in onedirection and spring pressed in the opposite direction, a main springconnecting said clutch member with said lever, -a link pivoted to sa dclutch member and having a lost motion connection with the lever, anindicator, and means movable with the clutch member for regulating theposition "of said indicator.

5. In a speed indicator device, a time mechanism, a rotatable clutchmember adapted to engage and move said mechanism, a main springconnected to said clutch member, means operated by the vehicleor machinewhose speed is to be measured for resetting said clutch member in aninitial position each time the machine moves a given distance, anindicator, a spring for moving said indicator in one direction, a device;tor normally locking said indicator against movement by the latterspring, means for tripping said locking device each time the machinemoves a given distance, and means movable with the clutch member forregulating the position of the indicator when the last mentioned springis released.

6. In a speed indicator device, a clutch member and a main spring formoving said mechanism, means operated by the machine whose speed is tobe measured for resetting said clutch member in an initial position eachtime said machine moves a given dis tance, afloat lever connected tosaid clutch member and having a stop pin or projection thereon, a springpressed ratchet wheel having an arm adapted to engagesaid stop, an

indicator movable by said wheel, a pawl normally engaging said wheel toprevent rotation by itsspring, and means for tripping said pawl eachtime the machine moves a given distance.

7. In a speed indicator device, a clutch member and a main spring'l'ormoving said mechanism, means operated by the machine whose speed isto be measured for resetting said clutch member in an initial positioneach time said machine moves a given dis tance, a rotary member, springpressed in one direction, an indicatormovable by said latter member,means connected with the clutch member for mo ing the rotary memher' inopposition to its spring, means for normally locking said rotary memberagainst movement by its spring, and means for releasing said rotarymember each time the machine moves a given distance and just before theclutch member is reset.

S. In a speed indicating device, a clutch member and a main spring formoving said mechanism, means operated by the machine whose speed is tobe measured for resetting said clutch member in an initial position eachtime said machine moves a given distance, a ratchet wheel spring pressedin one direction, a pawl normally preventing the movement of said wheelby its spring, a float lever connected to said clutch member and havinga stop or projection adapted to engage an arm or spoke of said wheel, anindicator, movable by said wheel, and means for releasing said pawl.each time the machine moves a given distance.

9. In a speed indicating device, a cam rotatable by the machine whosespeed is to be measured, a device spring pressed toward said cam, aclutch member, a main spring connecting said device with said clutch memher, a link pivoted. to said clutch member and. having a lost motionconnection with said. device, a clock mechanism movable by said clutchmember, an indicator, means connected with said clutch member for movingthe indicator in one direction, a spring for moving said indicator inthe opposite direction, means for normally preventing said latter springfrom moving the indicator, and means operated each time the machinemoves ,a given distance, for releasing said latter spring.

10. In a speed indicating device, a snail cam rotated by the machinewhose speed is to be measured, a clock mechanism, a rotatable clutchmember for moving said mech anism, a main spring connected to saidmember, means operated by said cam for putting said spring under tensionand for setting said clutch member, in an initial position, andindicating mechanism controlled by the position of said clutch member.

- 11. In a speed indicating device, a time mechanism, two clutch membersadapted to engage and move said -mechanism, main springs for moving eachof said members, devices operated at relatively different speeds by themachine whose speed is to be meas ured for putting said main springsunder tension and. then releasing the springs, means for resetting saidclutch "members in initial positions each time the springs are released,an indicator, devices movable with said clutch members for regulatingthe position of said indicator, and means whereby one of said latterdevices operates to regulate the position of the indicator for a certainrange of speeds and the/other of said devices oper ates to regulate theposition of the indicator for a higher range of speeds.

12. in a speed indicating device, an indicator, a rotary member springpressed in t one direction for moving said indkatm, a tripping devicenormally ')re\-entin;, the movement of said rotary member by its spring,a float lever havinga stop or projection adapted to more said rotarymember in the opposite direction, a clock mechanism, a clutch member formoring said clock mechanism in. one direction and connected to saidttoat lever, a cam operated by the maehlne for setting said ch'ltchmember in an initial position each time the machine travels unltdistance, means for moving said float lever I member is reset, incombination with a see- I I end float ]e\' adapted to engage said rotarymember in the inoperative positions of said first mentioned float lever,a clutch member for engaging the clock mechanism and operating saidsecond float; lever, a second cam rotated at a slower speed than saidfirst mentioned cam. means operated by said second mentioned cam forresetting said second elnteh member and means for tripping said rotarymember.

In testimony wheteof I attix my signature, in presence of two witnesses,

RALPH SHHMANP \Vitnesses: J

J 01m \Vinsnn Bassnnn, U. \V. BASSLER.

